Spring planting and planning

Growing up my lawn was lush, thick and the envy of the neighborhood. My Dad was the person that took care of the lawn using all sorts of pesticides and since he has passed it has all gone to crap. This year I decided to bring the lawn back to its previous beginnings, but using only organic material. Several weeks ago I spread corn glutten over the entire lawn to kill the crab grass, dandelions and any other broad leaf weeds that may sprout up. So far so good. Typically at this time the lawn is covered in a sheet of yellow from the dandelions, but I only have three! So far the corn glutten seems to be taking "root"